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Diffstat (limited to 'drivers/scsi/gvp11.c')
-rw-r--r--drivers/scsi/gvp11.c541
1 files changed, 286 insertions, 255 deletions
diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c
index 18b7102bb80e..2ce26eb7a1ec 100644
--- a/drivers/scsi/gvp11.c
+++ b/drivers/scsi/gvp11.c
@@ -1,36 +1,35 @@
1#include <linux/types.h> 1#include <linux/types.h>
2#include <linux/mm.h>
3#include <linux/slab.h>
4#include <linux/blkdev.h>
5#include <linux/init.h> 2#include <linux/init.h>
6#include <linux/interrupt.h> 3#include <linux/interrupt.h>
4#include <linux/mm.h>
5#include <linux/slab.h>
6#include <linux/spinlock.h>
7#include <linux/zorro.h>
7 8
8#include <asm/setup.h>
9#include <asm/page.h> 9#include <asm/page.h>
10#include <asm/pgtable.h> 10#include <asm/pgtable.h>
11#include <asm/amigaints.h> 11#include <asm/amigaints.h>
12#include <asm/amigahw.h> 12#include <asm/amigahw.h>
13#include <linux/zorro.h>
14#include <asm/irq.h>
15#include <linux/spinlock.h>
16 13
17#include "scsi.h" 14#include "scsi.h"
18#include <scsi/scsi_host.h>
19#include "wd33c93.h" 15#include "wd33c93.h"
20#include "gvp11.h" 16#include "gvp11.h"
21 17
22#include <linux/stat.h>
23 18
19#define CHECK_WD33C93
24 20
25#define DMA(ptr) ((gvp11_scsiregs *)((ptr)->base)) 21struct gvp11_hostdata {
22 struct WD33C93_hostdata wh;
23 struct gvp11_scsiregs *regs;
24};
26 25
27static irqreturn_t gvp11_intr(int irq, void *_instance) 26static irqreturn_t gvp11_intr(int irq, void *data)
28{ 27{
28 struct Scsi_Host *instance = data;
29 struct gvp11_hostdata *hdata = shost_priv(instance);
30 unsigned int status = hdata->regs->CNTR;
29 unsigned long flags; 31 unsigned long flags;
30 unsigned int status;
31 struct Scsi_Host *instance = (struct Scsi_Host *)_instance;
32 32
33 status = DMA(instance)->CNTR;
34 if (!(status & GVP11_DMAC_INT_PENDING)) 33 if (!(status & GVP11_DMAC_INT_PENDING))
35 return IRQ_NONE; 34 return IRQ_NONE;
36 35
@@ -50,64 +49,66 @@ void gvp11_setup(char *str, int *ints)
50static int dma_setup(struct scsi_cmnd *cmd, int dir_in) 49static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
51{ 50{
52 struct Scsi_Host *instance = cmd->device->host; 51 struct Scsi_Host *instance = cmd->device->host;
53 struct WD33C93_hostdata *hdata = shost_priv(instance); 52 struct gvp11_hostdata *hdata = shost_priv(instance);
53 struct WD33C93_hostdata *wh = &hdata->wh;
54 struct gvp11_scsiregs *regs = hdata->regs;
54 unsigned short cntr = GVP11_DMAC_INT_ENABLE; 55 unsigned short cntr = GVP11_DMAC_INT_ENABLE;
55 unsigned long addr = virt_to_bus(cmd->SCp.ptr); 56 unsigned long addr = virt_to_bus(cmd->SCp.ptr);
56 int bank_mask; 57 int bank_mask;
57 static int scsi_alloc_out_of_range = 0; 58 static int scsi_alloc_out_of_range = 0;
58 59
59 /* use bounce buffer if the physical address is bad */ 60 /* use bounce buffer if the physical address is bad */
60 if (addr & hdata->dma_xfer_mask) { 61 if (addr & wh->dma_xfer_mask) {
61 hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff; 62 wh->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
62 63
63 if (!scsi_alloc_out_of_range) { 64 if (!scsi_alloc_out_of_range) {
64 hdata->dma_bounce_buffer = 65 wh->dma_bounce_buffer =
65 kmalloc(hdata->dma_bounce_len, GFP_KERNEL); 66 kmalloc(wh->dma_bounce_len, GFP_KERNEL);
66 hdata->dma_buffer_pool = BUF_SCSI_ALLOCED; 67 wh->dma_buffer_pool = BUF_SCSI_ALLOCED;
67 } 68 }
68 69
69 if (scsi_alloc_out_of_range || 70 if (scsi_alloc_out_of_range ||
70 !hdata->dma_bounce_buffer) { 71 !wh->dma_bounce_buffer) {
71 hdata->dma_bounce_buffer = 72 wh->dma_bounce_buffer =
72 amiga_chip_alloc(hdata->dma_bounce_len, 73 amiga_chip_alloc(wh->dma_bounce_len,
73 "GVP II SCSI Bounce Buffer"); 74 "GVP II SCSI Bounce Buffer");
74 75
75 if (!hdata->dma_bounce_buffer) { 76 if (!wh->dma_bounce_buffer) {
76 hdata->dma_bounce_len = 0; 77 wh->dma_bounce_len = 0;
77 return 1; 78 return 1;
78 } 79 }
79 80
80 hdata->dma_buffer_pool = BUF_CHIP_ALLOCED; 81 wh->dma_buffer_pool = BUF_CHIP_ALLOCED;
81 } 82 }
82 83
83 /* check if the address of the bounce buffer is OK */ 84 /* check if the address of the bounce buffer is OK */
84 addr = virt_to_bus(hdata->dma_bounce_buffer); 85 addr = virt_to_bus(wh->dma_bounce_buffer);
85 86
86 if (addr & hdata->dma_xfer_mask) { 87 if (addr & wh->dma_xfer_mask) {
87 /* fall back to Chip RAM if address out of range */ 88 /* fall back to Chip RAM if address out of range */
88 if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED) { 89 if (wh->dma_buffer_pool == BUF_SCSI_ALLOCED) {
89 kfree(hdata->dma_bounce_buffer); 90 kfree(wh->dma_bounce_buffer);
90 scsi_alloc_out_of_range = 1; 91 scsi_alloc_out_of_range = 1;
91 } else { 92 } else {
92 amiga_chip_free(hdata->dma_bounce_buffer); 93 amiga_chip_free(wh->dma_bounce_buffer);
93 } 94 }
94 95
95 hdata->dma_bounce_buffer = 96 wh->dma_bounce_buffer =
96 amiga_chip_alloc(hdata->dma_bounce_len, 97 amiga_chip_alloc(wh->dma_bounce_len,
97 "GVP II SCSI Bounce Buffer"); 98 "GVP II SCSI Bounce Buffer");
98 99
99 if (!hdata->dma_bounce_buffer) { 100 if (!wh->dma_bounce_buffer) {
100 hdata->dma_bounce_len = 0; 101 wh->dma_bounce_len = 0;
101 return 1; 102 return 1;
102 } 103 }
103 104
104 addr = virt_to_bus(hdata->dma_bounce_buffer); 105 addr = virt_to_bus(wh->dma_bounce_buffer);
105 hdata->dma_buffer_pool = BUF_CHIP_ALLOCED; 106 wh->dma_buffer_pool = BUF_CHIP_ALLOCED;
106 } 107 }
107 108
108 if (!dir_in) { 109 if (!dir_in) {
109 /* copy to bounce buffer for a write */ 110 /* copy to bounce buffer for a write */
110 memcpy(hdata->dma_bounce_buffer, cmd->SCp.ptr, 111 memcpy(wh->dma_bounce_buffer, cmd->SCp.ptr,
111 cmd->SCp.this_residual); 112 cmd->SCp.this_residual);
112 } 113 }
113 } 114 }
@@ -116,11 +117,11 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
116 if (!dir_in) 117 if (!dir_in)
117 cntr |= GVP11_DMAC_DIR_WRITE; 118 cntr |= GVP11_DMAC_DIR_WRITE;
118 119
119 hdata->dma_dir = dir_in; 120 wh->dma_dir = dir_in;
120 DMA(cmd->device->host)->CNTR = cntr; 121 regs->CNTR = cntr;
121 122
122 /* setup DMA *physical* address */ 123 /* setup DMA *physical* address */
123 DMA(cmd->device->host)->ACR = addr; 124 regs->ACR = addr;
124 125
125 if (dir_in) { 126 if (dir_in) {
126 /* invalidate any cache */ 127 /* invalidate any cache */
@@ -130,12 +131,12 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
130 cache_push(addr, cmd->SCp.this_residual); 131 cache_push(addr, cmd->SCp.this_residual);
131 } 132 }
132 133
133 bank_mask = (~hdata->dma_xfer_mask >> 18) & 0x01c0; 134 bank_mask = (~wh->dma_xfer_mask >> 18) & 0x01c0;
134 if (bank_mask) 135 if (bank_mask)
135 DMA(cmd->device->host)->BANK = bank_mask & (addr >> 18); 136 regs->BANK = bank_mask & (addr >> 18);
136 137
137 /* start DMA */ 138 /* start DMA */
138 DMA(cmd->device->host)->ST_DMA = 1; 139 regs->ST_DMA = 1;
139 140
140 /* return success */ 141 /* return success */
141 return 0; 142 return 0;
@@ -144,236 +145,53 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
144static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt, 145static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
145 int status) 146 int status)
146{ 147{
147 struct WD33C93_hostdata *hdata = shost_priv(instance); 148 struct gvp11_hostdata *hdata = shost_priv(instance);
149 struct WD33C93_hostdata *wh = &hdata->wh;
150 struct gvp11_scsiregs *regs = hdata->regs;
148 151
149 /* stop DMA */ 152 /* stop DMA */
150 DMA(instance)->SP_DMA = 1; 153 regs->SP_DMA = 1;
151 /* remove write bit from CONTROL bits */ 154 /* remove write bit from CONTROL bits */
152 DMA(instance)->CNTR = GVP11_DMAC_INT_ENABLE; 155 regs->CNTR = GVP11_DMAC_INT_ENABLE;
153 156
154 /* copy from a bounce buffer, if necessary */ 157 /* copy from a bounce buffer, if necessary */
155 if (status && hdata->dma_bounce_buffer) { 158 if (status && wh->dma_bounce_buffer) {
156 if (hdata->dma_dir && SCpnt) 159 if (wh->dma_dir && SCpnt)
157 memcpy(SCpnt->SCp.ptr, hdata->dma_bounce_buffer, 160 memcpy(SCpnt->SCp.ptr, wh->dma_bounce_buffer,
158 SCpnt->SCp.this_residual); 161 SCpnt->SCp.this_residual);
159 162
160 if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED) 163 if (wh->dma_buffer_pool == BUF_SCSI_ALLOCED)
161 kfree(hdata->dma_bounce_buffer); 164 kfree(wh->dma_bounce_buffer);
162 else
163 amiga_chip_free(hdata->dma_bounce_buffer);
164
165 hdata->dma_bounce_buffer = NULL;
166 hdata->dma_bounce_len = 0;
167 }
168}
169
170#define CHECK_WD33C93
171
172int __init gvp11_detect(struct scsi_host_template *tpnt)
173{
174 static unsigned char called = 0;
175 struct Scsi_Host *instance;
176 unsigned long address;
177 unsigned int epc;
178 struct zorro_dev *z = NULL;
179 unsigned int default_dma_xfer_mask;
180 struct WD33C93_hostdata *hdata;
181 wd33c93_regs regs;
182 int num_gvp11 = 0;
183#ifdef CHECK_WD33C93
184 volatile unsigned char *sasr_3393, *scmd_3393;
185 unsigned char save_sasr;
186 unsigned char q, qq;
187#endif
188
189 if (!MACH_IS_AMIGA || called)
190 return 0;
191 called = 1;
192
193 tpnt->proc_name = "GVP11";
194 tpnt->proc_info = &wd33c93_proc_info;
195
196 while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
197 /*
198 * This should (hopefully) be the correct way to identify
199 * all the different GVP SCSI controllers (except for the
200 * SERIES I though).
201 */
202
203 if (z->id == ZORRO_PROD_GVP_COMBO_030_R3_SCSI ||
204 z->id == ZORRO_PROD_GVP_SERIES_II)
205 default_dma_xfer_mask = ~0x00ffffff;
206 else if (z->id == ZORRO_PROD_GVP_GFORCE_030_SCSI ||
207 z->id == ZORRO_PROD_GVP_A530_SCSI ||
208 z->id == ZORRO_PROD_GVP_COMBO_030_R4_SCSI)
209 default_dma_xfer_mask = ~0x01ffffff;
210 else if (z->id == ZORRO_PROD_GVP_A1291 ||
211 z->id == ZORRO_PROD_GVP_GFORCE_040_SCSI_1)
212 default_dma_xfer_mask = ~0x07ffffff;
213 else 165 else
214 continue; 166 amiga_chip_free(wh->dma_bounce_buffer);
215
216 /*
217 * Rumors state that some GVP ram boards use the same product
218 * code as the SCSI controllers. Therefore if the board-size
219 * is not 64KB we asume it is a ram board and bail out.
220 */
221 if (z->resource.end - z->resource.start != 0xffff)
222 continue;
223 167
224 address = z->resource.start; 168 wh->dma_bounce_buffer = NULL;
225 if (!request_mem_region(address, 256, "wd33c93")) 169 wh->dma_bounce_len = 0;
226 continue;
227
228#ifdef CHECK_WD33C93
229
230 /*
231 * These darn GVP boards are a problem - it can be tough to tell
232 * whether or not they include a SCSI controller. This is the
233 * ultimate Yet-Another-GVP-Detection-Hack in that it actually
234 * probes for a WD33c93 chip: If we find one, it's extremely
235 * likely that this card supports SCSI, regardless of Product_
236 * Code, Board_Size, etc.
237 */
238
239 /* Get pointers to the presumed register locations and save contents */
240
241 sasr_3393 = &(((gvp11_scsiregs *)(ZTWO_VADDR(address)))->SASR);
242 scmd_3393 = &(((gvp11_scsiregs *)(ZTWO_VADDR(address)))->SCMD);
243 save_sasr = *sasr_3393;
244
245 /* First test the AuxStatus Reg */
246
247 q = *sasr_3393; /* read it */
248 if (q & 0x08) /* bit 3 should always be clear */
249 goto release;
250 *sasr_3393 = WD_AUXILIARY_STATUS; /* setup indirect address */
251 if (*sasr_3393 == WD_AUXILIARY_STATUS) { /* shouldn't retain the write */
252 *sasr_3393 = save_sasr; /* Oops - restore this byte */
253 goto release;
254 }
255 if (*sasr_3393 != q) { /* should still read the same */
256 *sasr_3393 = save_sasr; /* Oops - restore this byte */
257 goto release;
258 }
259 if (*scmd_3393 != q) /* and so should the image at 0x1f */
260 goto release;
261
262 /*
263 * Ok, we probably have a wd33c93, but let's check a few other places
264 * for good measure. Make sure that this works for both 'A and 'B
265 * chip versions.
266 */
267
268 *sasr_3393 = WD_SCSI_STATUS;
269 q = *scmd_3393;
270 *sasr_3393 = WD_SCSI_STATUS;
271 *scmd_3393 = ~q;
272 *sasr_3393 = WD_SCSI_STATUS;
273 qq = *scmd_3393;
274 *sasr_3393 = WD_SCSI_STATUS;
275 *scmd_3393 = q;
276 if (qq != q) /* should be read only */
277 goto release;
278 *sasr_3393 = 0x1e; /* this register is unimplemented */
279 q = *scmd_3393;
280 *sasr_3393 = 0x1e;
281 *scmd_3393 = ~q;
282 *sasr_3393 = 0x1e;
283 qq = *scmd_3393;
284 *sasr_3393 = 0x1e;
285 *scmd_3393 = q;
286 if (qq != q || qq != 0xff) /* should be read only, all 1's */
287 goto release;
288 *sasr_3393 = WD_TIMEOUT_PERIOD;
289 q = *scmd_3393;
290 *sasr_3393 = WD_TIMEOUT_PERIOD;
291 *scmd_3393 = ~q;
292 *sasr_3393 = WD_TIMEOUT_PERIOD;
293 qq = *scmd_3393;
294 *sasr_3393 = WD_TIMEOUT_PERIOD;
295 *scmd_3393 = q;
296 if (qq != (~q & 0xff)) /* should be read/write */
297 goto release;
298#endif
299
300 instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
301 if (instance == NULL)
302 goto release;
303 instance->base = ZTWO_VADDR(address);
304 instance->irq = IRQ_AMIGA_PORTS;
305 instance->unique_id = z->slotaddr;
306
307 hdata = shost_priv(instance);
308 if (gvp11_xfer_mask)
309 hdata->dma_xfer_mask = gvp11_xfer_mask;
310 else
311 hdata->dma_xfer_mask = default_dma_xfer_mask;
312
313 DMA(instance)->secret2 = 1;
314 DMA(instance)->secret1 = 0;
315 DMA(instance)->secret3 = 15;
316 while (DMA(instance)->CNTR & GVP11_DMAC_BUSY)
317 ;
318 DMA(instance)->CNTR = 0;
319
320 DMA(instance)->BANK = 0;
321
322 epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);
323
324 /*
325 * Check for 14MHz SCSI clock
326 */
327 regs.SASR = &(DMA(instance)->SASR);
328 regs.SCMD = &(DMA(instance)->SCMD);
329 hdata->no_sync = 0xff;
330 hdata->fast = 0;
331 hdata->dma_mode = CTRL_DMA;
332 wd33c93_init(instance, regs, dma_setup, dma_stop,
333 (epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
334 : WD33C93_FS_12_15);
335
336 if (request_irq(IRQ_AMIGA_PORTS, gvp11_intr, IRQF_SHARED,
337 "GVP11 SCSI", instance))
338 goto unregister;
339 DMA(instance)->CNTR = GVP11_DMAC_INT_ENABLE;
340 num_gvp11++;
341 continue;
342
343unregister:
344 scsi_unregister(instance);
345release:
346 release_mem_region(address, 256);
347 } 170 }
348
349 return num_gvp11;
350} 171}
351 172
352static int gvp11_bus_reset(struct scsi_cmnd *cmd) 173static int gvp11_bus_reset(struct scsi_cmnd *cmd)
353{ 174{
175 struct Scsi_Host *instance = cmd->device->host;
176
354 /* FIXME perform bus-specific reset */ 177 /* FIXME perform bus-specific reset */
355 178
356 /* FIXME 2: shouldn't we no-op this function (return 179 /* FIXME 2: shouldn't we no-op this function (return
357 FAILED), and fall back to host reset function, 180 FAILED), and fall back to host reset function,
358 wd33c93_host_reset ? */ 181 wd33c93_host_reset ? */
359 182
360 spin_lock_irq(cmd->device->host->host_lock); 183 spin_lock_irq(instance->host_lock);
361 wd33c93_host_reset(cmd); 184 wd33c93_host_reset(cmd);
362 spin_unlock_irq(cmd->device->host->host_lock); 185 spin_unlock_irq(instance->host_lock);
363 186
364 return SUCCESS; 187 return SUCCESS;
365} 188}
366 189
367 190static struct scsi_host_template gvp11_scsi_template = {
368#define HOSTS_C 191 .module = THIS_MODULE,
369
370#include "gvp11.h"
371
372static struct scsi_host_template driver_template = {
373 .proc_name = "GVP11",
374 .name = "GVP Series II SCSI", 192 .name = "GVP Series II SCSI",
375 .detect = gvp11_detect, 193 .proc_info = wd33c93_proc_info,
376 .release = gvp11_release, 194 .proc_name = "GVP11",
377 .queuecommand = wd33c93_queuecommand, 195 .queuecommand = wd33c93_queuecommand,
378 .eh_abort_handler = wd33c93_abort, 196 .eh_abort_handler = wd33c93_abort,
379 .eh_bus_reset_handler = gvp11_bus_reset, 197 .eh_bus_reset_handler = gvp11_bus_reset,
@@ -385,17 +203,230 @@ static struct scsi_host_template driver_template = {
385 .use_clustering = DISABLE_CLUSTERING 203 .use_clustering = DISABLE_CLUSTERING
386}; 204};
387 205
206static int __devinit check_wd33c93(struct gvp11_scsiregs *regs)
207{
208#ifdef CHECK_WD33C93
209 volatile unsigned char *sasr_3393, *scmd_3393;
210 unsigned char save_sasr;
211 unsigned char q, qq;
388 212
389#include "scsi_module.c" 213 /*
214 * These darn GVP boards are a problem - it can be tough to tell
215 * whether or not they include a SCSI controller. This is the
216 * ultimate Yet-Another-GVP-Detection-Hack in that it actually
217 * probes for a WD33c93 chip: If we find one, it's extremely
218 * likely that this card supports SCSI, regardless of Product_
219 * Code, Board_Size, etc.
220 */
221
222 /* Get pointers to the presumed register locations and save contents */
223
224 sasr_3393 = &regs->SASR;
225 scmd_3393 = &regs->SCMD;
226 save_sasr = *sasr_3393;
227
228 /* First test the AuxStatus Reg */
229
230 q = *sasr_3393; /* read it */
231 if (q & 0x08) /* bit 3 should always be clear */
232 return -ENODEV;
233 *sasr_3393 = WD_AUXILIARY_STATUS; /* setup indirect address */
234 if (*sasr_3393 == WD_AUXILIARY_STATUS) { /* shouldn't retain the write */
235 *sasr_3393 = save_sasr; /* Oops - restore this byte */
236 return -ENODEV;
237 }
238 if (*sasr_3393 != q) { /* should still read the same */
239 *sasr_3393 = save_sasr; /* Oops - restore this byte */
240 return -ENODEV;
241 }
242 if (*scmd_3393 != q) /* and so should the image at 0x1f */
243 return -ENODEV;
244
245 /*
246 * Ok, we probably have a wd33c93, but let's check a few other places
247 * for good measure. Make sure that this works for both 'A and 'B
248 * chip versions.
249 */
250
251 *sasr_3393 = WD_SCSI_STATUS;
252 q = *scmd_3393;
253 *sasr_3393 = WD_SCSI_STATUS;
254 *scmd_3393 = ~q;
255 *sasr_3393 = WD_SCSI_STATUS;
256 qq = *scmd_3393;
257 *sasr_3393 = WD_SCSI_STATUS;
258 *scmd_3393 = q;
259 if (qq != q) /* should be read only */
260 return -ENODEV;
261 *sasr_3393 = 0x1e; /* this register is unimplemented */
262 q = *scmd_3393;
263 *sasr_3393 = 0x1e;
264 *scmd_3393 = ~q;
265 *sasr_3393 = 0x1e;
266 qq = *scmd_3393;
267 *sasr_3393 = 0x1e;
268 *scmd_3393 = q;
269 if (qq != q || qq != 0xff) /* should be read only, all 1's */
270 return -ENODEV;
271 *sasr_3393 = WD_TIMEOUT_PERIOD;
272 q = *scmd_3393;
273 *sasr_3393 = WD_TIMEOUT_PERIOD;
274 *scmd_3393 = ~q;
275 *sasr_3393 = WD_TIMEOUT_PERIOD;
276 qq = *scmd_3393;
277 *sasr_3393 = WD_TIMEOUT_PERIOD;
278 *scmd_3393 = q;
279 if (qq != (~q & 0xff)) /* should be read/write */
280 return -ENODEV;
281#endif /* CHECK_WD33C93 */
390 282
391int gvp11_release(struct Scsi_Host *instance) 283 return 0;
284}
285
286static int __devinit gvp11_probe(struct zorro_dev *z,
287 const struct zorro_device_id *ent)
392{ 288{
393#ifdef MODULE 289 struct Scsi_Host *instance;
394 DMA(instance)->CNTR = 0; 290 unsigned long address;
395 release_mem_region(ZTWO_PADDR(instance->base), 256); 291 int error;
292 unsigned int epc;
293 unsigned int default_dma_xfer_mask;
294 struct gvp11_hostdata *hdata;
295 struct gvp11_scsiregs *regs;
296 wd33c93_regs wdregs;
297
298 default_dma_xfer_mask = ent->driver_data;
299
300 /*
301 * Rumors state that some GVP ram boards use the same product
302 * code as the SCSI controllers. Therefore if the board-size
303 * is not 64KB we asume it is a ram board and bail out.
304 */
305 if (zorro_resource_len(z) != 0x10000)
306 return -ENODEV;
307
308 address = z->resource.start;
309 if (!request_mem_region(address, 256, "wd33c93"))
310 return -EBUSY;
311
312 regs = (struct gvp11_scsiregs *)(ZTWO_VADDR(address));
313
314 error = check_wd33c93(regs);
315 if (error)
316 goto fail_check_or_alloc;
317
318 instance = scsi_host_alloc(&gvp11_scsi_template,
319 sizeof(struct gvp11_hostdata));
320 if (!instance) {
321 error = -ENOMEM;
322 goto fail_check_or_alloc;
323 }
324
325 instance->irq = IRQ_AMIGA_PORTS;
326 instance->unique_id = z->slotaddr;
327
328 regs->secret2 = 1;
329 regs->secret1 = 0;
330 regs->secret3 = 15;
331 while (regs->CNTR & GVP11_DMAC_BUSY)
332 ;
333 regs->CNTR = 0;
334 regs->BANK = 0;
335
336 wdregs.SASR = &regs->SASR;
337 wdregs.SCMD = &regs->SCMD;
338
339 hdata = shost_priv(instance);
340 if (gvp11_xfer_mask)
341 hdata->wh.dma_xfer_mask = gvp11_xfer_mask;
342 else
343 hdata->wh.dma_xfer_mask = default_dma_xfer_mask;
344
345 hdata->wh.no_sync = 0xff;
346 hdata->wh.fast = 0;
347 hdata->wh.dma_mode = CTRL_DMA;
348 hdata->regs = regs;
349
350 /*
351 * Check for 14MHz SCSI clock
352 */
353 epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);
354 wd33c93_init(instance, wdregs, dma_setup, dma_stop,
355 (epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
356 : WD33C93_FS_12_15);
357
358 error = request_irq(IRQ_AMIGA_PORTS, gvp11_intr, IRQF_SHARED,
359 "GVP11 SCSI", instance);
360 if (error)
361 goto fail_irq;
362
363 regs->CNTR = GVP11_DMAC_INT_ENABLE;
364
365 error = scsi_add_host(instance, NULL);
366 if (error)
367 goto fail_host;
368
369 zorro_set_drvdata(z, instance);
370 scsi_scan_host(instance);
371 return 0;
372
373fail_host:
396 free_irq(IRQ_AMIGA_PORTS, instance); 374 free_irq(IRQ_AMIGA_PORTS, instance);
397#endif 375fail_irq:
398 return 1; 376 scsi_host_put(instance);
377fail_check_or_alloc:
378 release_mem_region(address, 256);
379 return error;
380}
381
382static void __devexit gvp11_remove(struct zorro_dev *z)
383{
384 struct Scsi_Host *instance = zorro_get_drvdata(z);
385 struct gvp11_hostdata *hdata = shost_priv(instance);
386
387 hdata->regs->CNTR = 0;
388 scsi_remove_host(instance);
389 free_irq(IRQ_AMIGA_PORTS, instance);
390 scsi_host_put(instance);
391 release_mem_region(z->resource.start, 256);
392}
393
394 /*
395 * This should (hopefully) be the correct way to identify
396 * all the different GVP SCSI controllers (except for the
397 * SERIES I though).
398 */
399
400static struct zorro_device_id gvp11_zorro_tbl[] __devinitdata = {
401 { ZORRO_PROD_GVP_COMBO_030_R3_SCSI, ~0x00ffffff },
402 { ZORRO_PROD_GVP_SERIES_II, ~0x00ffffff },
403 { ZORRO_PROD_GVP_GFORCE_030_SCSI, ~0x01ffffff },
404 { ZORRO_PROD_GVP_A530_SCSI, ~0x01ffffff },
405 { ZORRO_PROD_GVP_COMBO_030_R4_SCSI, ~0x01ffffff },
406 { ZORRO_PROD_GVP_A1291, ~0x07ffffff },
407 { ZORRO_PROD_GVP_GFORCE_040_SCSI_1, ~0x07ffffff },
408 { 0 }
409};
410MODULE_DEVICE_TABLE(zorro, gvp11_zorro_tbl);
411
412static struct zorro_driver gvp11_driver = {
413 .name = "gvp11",
414 .id_table = gvp11_zorro_tbl,
415 .probe = gvp11_probe,
416 .remove = __devexit_p(gvp11_remove),
417};
418
419static int __init gvp11_init(void)
420{
421 return zorro_register_driver(&gvp11_driver);
422}
423module_init(gvp11_init);
424
425static void __exit gvp11_exit(void)
426{
427 zorro_unregister_driver(&gvp11_driver);
399} 428}
429module_exit(gvp11_exit);
400 430
431MODULE_DESCRIPTION("GVP Series II SCSI");
401MODULE_LICENSE("GPL"); 432MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-20 18:45:54 -0500